Sec Form 13G Filing - SCIENCE APPLICATIONS INTERNATIONAL CORP filing for INTRUSION INC PAR $0.01 (INTZ) - 2004-02-06

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

o

Rule 13d-1(b)

ý

Rule 13d-1(c)

o

Rule 13d-1(d)

CUSIP No.  67082N109

1.

Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only)
Science Applications International Corporation
95-3630868

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3.

SEC Use Only

4.

Citizenship or Place of Organization
Delaware

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
None

6.

Shared Voting Power
None

7.

Sole Dispositive Power
None

8.

Shared Dispositive Power
None

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
None

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

11.

Percent of Class Represented by Amount in Row (9)
0%

12.

Type of Reporting Person (See Instructions)
CO

1.

Names of Reporting Persons. I.R.S. Identification Nos. of above persons (entities only)
SAIC Venture Capital Corporation
88-0447177

2.

Check the Appropriate Box if a Member of a Group (See Instructions)

(a)

o

(b)

o

3.

SEC Use Only

4.

Citizenship or Place of Organization
Nevada

Number of
Shares
Beneficially
Owned by
Each
Reporting
Person With

5.

Sole Voting Power
None

6.

Shared Voting Power
None

7.

Sole Dispositive Power
None

8.

Shared Dispositive Power
None

9.

Aggregate Amount Beneficially Owned by Each Reporting Person
None

10.

Check if the Aggregate Amount in Row (9) Excludes Certain Shares (See Instructions)  o

11.

Percent of Class Represented by Amount in Row (9)
0%

12.

Type of Reporting Person (See Instructions)
CO

Item 1.

(a)

Name of Issuer
Intrusion Inc.

(b)

Address of Issuer’s Principal Executive Offices
1101 East Arapaho Road, Richardson, Texas 75081

Item 2.

(a)

Name of Person Filing
This Schedule 13G is being filed jointly by each of the following persons pursuant to Rule 13d-1(k)(1): (i) Science Applications International Corporation, a Delaware corporation ("SAIC"); and (ii) SAIC Venture Capital Corporation, a Nevada corporation and wholly owned subsidiary of SAIC ("SVCC" and, together with SAIC, the "Reporting Persons").

(b)

Address of Principal Business Office or, if none, Residence
The address of the principal business office of SAIC is 10260 Campus Point Drive, San Diego, California 92121, and the address of the principal business office of SVCC is 3993 Howard Hughes Parkway, Suite 570, Las Vegas, Nevada 89109.

(c)

Citizenship
SAIC is incorporated in Delaware and SVCC is incorporated in Nevada.

(d)

Title of Class of Securities
Common Stock, $.01 par value per share.

(e)

CUSIP Number
67082N109

Item 3.

If this statement is filed pursuant to §§240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:

(a)

o

Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o).

(b)

o

Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c).

(c)

o

Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c).

(d)

o

Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C 80a-8).

(e)

o

An investment adviser in accordance with §240.13d-1(b)(1)(ii)(E);

(f)

o

An employee benefit plan or endowment fund in accordance with §240.13d-1(b)(1)(ii)(F);

(g)

o

A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);

(h)

o

A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);

(i)

o

A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);

(j)

o

Group, in accordance with §240.13d-1(b)(1)(ii)(J).

Item 4.

Ownership

Provide the following information regarding the aggregate number and percentage of the class of securities of the issuer identified in Item 1.

(a)

Amount beneficially owned:   
None

(b)

Percent of class:   
0%.

(c)

Number of shares as to which the person has:

(i)

Sole power to vote or to direct the vote   
None.

(ii)

Shared power to vote or to direct the vote    
None.

(iii)

Sole power to dispose or to direct the disposition of   
None.

(iv)

Shared power to dispose or to direct the disposition of   
None.

Item 5.

Ownership of Five Percent or Less of a Class

If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than five percent of the class of securities, check the following   ý.

Item 6.

Ownership of More than Five Percent on Behalf of Another Person

Not applicable.

Item 7.

Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company or Control Person

Not applicable.

Item 8.

Identification and Classification of Members of the Group

Not applicable.

Item 9.

Notice of Dissolution of Group

Not applicable.

Item 10.

Certification

By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

Date:   February 6, 2004

SCIENCE APPLICATIONS INTERNATIONAL CORPORATION

By:

/S/ DOUGLAS E. SCOTT

Name:  Douglas E. Scott

Title:  Senior Vice President, General Counsel and Secretary

SAIC VENTURE CAPITAL CORPORATION.

By:

/S/ GIAN A. BROWN

Name:  Gian A. Brown

Title:  General Counsel

Exhibit No.

Document

1

Joint Filing Agreement, dated February 6, 2004, between Science Applications International Corporation and SAIC Venture Capital Corporation to file joint statement on Schedule 13G